LB Health Check
You can create an LB Health Check through the Samsung Cloud Platform Console and use it for LB Server Groups.
Creating LB Health Check
Follow these steps to create an LB Health Check:
- Click the All Services > Networking > Load Balancer menu. You will be navigated to the Load Balancer’s Service Home page.
- On the Service Home page, click the LB Health Check menu. You will be navigated to the LB Health Check List page.
- On the LB Health Check List page, click the Create LB Health Check button. You will be navigated to the Create LB Health Check page.
- On the Create LB Health Check page, enter the information required for service creation and select detailed options.
- In the Service Information area, enter or select the required information.
Item RequiredDetailed Description LB Health Check Name Required LB Health Check resource name - Enter 3 to 63 characters using uppercase/lowercase English letters, numbers, and special characters(
-_)
- LB Health Check name cannot be duplicated within an Account
VPC Name Required Select VPC to create LB Health Check - Select VPC where the LB Server Group to use the LB Health Check is created
Service Subnet Name Required Select VPC Subnet to create LB Health Check - Select Subnet where the LB Server Group to use the LB Health Check is created
Health Check Method > Protocol Required Health check protocol - Select from TCP, HTTP to use for member health check
Health Check Method > Health Check Port Required Health check port - Enter a value between 1 and 65,534 to use for member health check
Health Check Method > Interval Required Health check interval - Default value 5 seconds, can enter between 1 and 180 seconds
Health Check Method > Timeout Required Health check response wait time - Default value 5 seconds, can enter between 1 and 180 seconds
- Cannot set to a value greater than the interval
Health Check Method > Healthy Threshold Required Number of times to determine health check status - Default value 3 times, can enter between 1 and 10
Health Check Method > HTTP Method Required Set HTTP request method (when using HTTP protocol) - Select from GET, POST
Health Check Method > URL Path Required Enter health check URL path (when using HTTP protocol) - Enter within 50 characters using English letters, numbers, and special characters(
/.-_?&=)
Health Check Method > Response Code Required Enter HTTP response code to receive from server (when using HTTP protocol) - Enter response codes in the 200 ~ 500 range
Health Check Method > Request String Required Enter health check request string (when using HTTP protocol POST method) - Enter content to include in Request Body within 255 bytes using English letters, numbers, and special characters(
/.-_?&=)
Table. LB Health Check service information input items - Enter 3 to 63 characters using uppercase/lowercase English letters, numbers, and special characters(
- In the Additional Information area, enter or select the required information.
Item RequiredDetailed Description Description Optional Enter resource description Tag Optional Add tag - Can add up to 50 tags per resource
Table. LB Server Group additional information input items
- In the Service Information area, enter or select the required information.
- In the Summary panel, review the created service information and estimated charges, then click the Create button.
- When creation is complete, verify the created resource on the LB Health Check List page.
For member health check in Load Balancer, add the following rules to the Security Group of the server added as a member.
- (Direction) Inbound rule, (Target Address) Load Balancer’s health check IP, (Protocol) Health check protocol, (Allowed Port) Health check port
- We recommend setting the health check port to be the same as the member port.
- If the health check port and member port are different, health check is performed based on the member port.
Set the LB Health Check to a value that can respond from members to be added to the LB Server Group.
- Since Load Balancer determines member status based on health check response, the LB Health Check result may differ from the actual service status.
Viewing LB Health Check Detailed Information
You can view and modify resource lists and detailed information from the LB Health Check menu. The LB Health Check Detail page consists of Detailed Information, Connected Resources, Tags, and Task History tabs.
Follow these steps to view detailed information of the LB Health Check:
Click the All Services > Networking > Load Balancer menu. You will be navigated to the Load Balancer’s Service Home page.
On the Service Home page, click the LB Health Check menu. You will be navigated to the LB Health Check List page.
- You can modify column display by clicking the Settings button in the upper right of the table.
Item DisplayDetailed Description LB Health Check Name Default LB Health Check resource name Service Subnet ID Default VPC Subnet name where the LB Health Check is created LB Server Group Count Default Number of LB Server Groups using the LB Health Check Type Default LB Health Check type Protocol Default LB Health Check protocol Creation Date Default LB Health Check creation date Status Default LB Health Check resource status Table. LB Health Check list items
- You can modify column display by clicking the Settings button in the upper right of the table.
On the LB Health Check List page, click the resource for which you want to view detailed information. You will be navigated to the LB Health Check Detail page.
- At the top of the LB Health Check Detail page, status information and description of additional features are displayed.
Item Detailed Description Status LB Health Check resource status - Active: Service is normally activated
- Deleting: Processing service termination request
- Creating: Processing service creation request
- Error: Cannot check current status due to internal error
- If this status persists, contact Support Center
- Editing: Processing service modification request
Delete LB Health Check Delete LB Health Check resource Table. LB Health Check status information and additional feature items
- At the top of the LB Health Check Detail page, status information and description of additional features are displayed.
Detailed Information
On the Detailed Information tab, you can view detailed information of the resource from the LB Health Check List and modify information if necessary.
| Item | Detailed Description |
|---|---|
| Service | Service name |
| Resource Type | Resource type |
| SRN | Unique resource ID in Samsung Cloud Platform |
| Resource Name | Resource name |
| Resource ID | Unique resource ID in the service |
| Creator | User who requested service creation |
| Creation Date | Service creation date |
| Modifier | User who requested service modification |
| Modification Date | Service modification date |
| LB Health Check Name | LB Health Check name |
| Type | LB Health Check type |
| VPC Name | VPC to use the LB Health Check
|
| Service Subnet Name | VPC Subnet to use the LB Health Check
|
| Health Check Method | LB Health Check method setting information
|
| Description | Additional information about the LB Health Check
|
Connected Resources
On the Connected Resources tab, you can view detailed information of the LB Server Group connected to the LB Health Check.
| Item | Detailed Description |
|---|---|
| LB Server Group Name | LB Server Group resource name
|
| Protocol | LB Health Check protocol |
| Load Balancer Name | Load Balancer resource name connected to LB Server Group |
| Member Count | Number of members added to LB Server Group |
| Creation Date | LB Server Group creation date |
| Status | LB Server Group resource status
|
Tags
You can view, add, modify, or delete tag information for the resource selected from the LB Health Check List page.
| Item | Detailed Description |
|---|---|
| Tag List | Tag list
|
Task History
On the Task History tab, you can view the task history of the selected resource.
| Item | Detailed Description |
|---|---|
| Task Details | Task execution content |
| Task Date | Task execution date |
| Resource Type | Resource type |
| Resource Name | LB Health Check name |
| Task Result | Task execution result (Success/Failure) |
| Task User Information | User information who performed the task |
Modifying LB Health Check Method
You can modify the health check method on the LB Health Check Detail page.
Follow these steps to modify the LB Health Check method:
- Click the All Services > Networking > Load Balancer menu. You will be navigated to the Load Balancer’s Service Home page.
- On the Service Home page, click the LB Health Check menu. You will be navigated to the LB Health Check List page.
- On the LB Health Check List page, click the resource for which you want to modify detailed information. You will be navigated to the LB Health Check Detail page.
- On the LB Health Check Detail page, click the Edit icon on Health Check Method. You will be navigated to the Modify Health Check Method popup window.
- In the Modify Health Check Method popup window, modify the required information, then click the OK button.
Terminating LB Health Check
You can terminate an LB Health Check service that is not in use.
- You cannot delete LB Health Check resources of Default type.
- You cannot delete LB Health Check resources in use by LB Server Groups.
Follow these steps to terminate the LB Health Check:
- Click the All Services > Networking > Load Balancer menu. You will be navigated to the Load Balancer’s Service Home page.
- On the Service Home page, click the LB Health Check menu. You will be navigated to the LB Health Check List page.
- On the LB Health Check List, click the resource you want to terminate. You will be navigated to the LB Health Check Detail page.
- On the LB Health Check Detail page, click the Delete LB Health Check button.
- When termination is complete, verify resource termination on the LB Health Check List.